Pilot Flame Characteristics - Empire Comfort Systems VFP30CA30 Series Installation Instructions And Owner's Manual

Figure 11 shows a correct pilot flame pattern. The correct flame
will be blue and will extend beyond the thermocouple and ther-
mopile. The flame will surround the thermocouple and thermopile
just below the tip. A slight yellow flame may occur where the pilot
flame and main burner flame meet. Figure 12 shows an incorrect
pilot flame pattern. The incorrect pilot flame is not touching the
thermocouple or thermopile. This will cause the thermocouple or
thermopile to cool. When the thermocouple cools, the heater will
shut down.
Correct Pilot Flame Pattern
Incorrect Pilot Flame Pattern
If pilot flame pattern is incorrect, as shown in Figure 12
• See Troubleshooting, pages 18 and 19.
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PILOT FLAME ChARACTERISTICS

Figure 11
Figure 12
Cleaning and Maintenance/Pilot
Oxygen Depletion Sensor Pilot (Figure 13)
When the pilot has a large yellow tip flame, clean the Oxygen
Depletion Sensor as follows:
1. Clean the ODS pilot by loosening nut B from the pilot tubing.
When this procedure is required, grasp nut A with an open
wrench.
2. Blow air pressure through the holes indicated by the arrows.
This will blow out foreign materials such as dust, lint and spider
webs. Tighten nut B also by grasping nut A.
Figure 13
26563-0-0410